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| n | a(n) |
|---|---|
| 0 | 6 |
| 1 | 2 |
| 2 | 8 |
| 3 | 122 |
| 4 | 18919 |
| 5 | 402739144 |
| 6 | 764123173937021975 |
| 7 | 2148666191962903360885805290461855276 |
| 8 | 8622580654686644746427953833014483269744901669599325824509666827330296874 |
[6,2,8,122,18919,402739144,764123173937021975, 2148666191962903360885805290461855276, 86225806546866447464279538330144832697449016695993\ 25824509666827330296874] |